﻿
/* Set the defaults for DataTables initialisation */
//这里的默认值被修改过
$.extend(true, $.fn.dataTable.defaults, {
    "sDom": 'rt<"bottom"iflp><"clear">',
    "sPaginationType": "bootstrap",
    sort: false,
    processing: true,
    'lengthChange': false, //是否允许用户自定义每页显示条数。
    'filter': false, //是否使用内置的过滤功能。
    displayLength: 15,//每页显示15行
    "aLengthMenu": [10, 15, 25, 50],
    "oLanguage": {
        "sEmptyTable": "没有数据显示",
        "sProcessing": "正在加载数据...",
        "sLengthMenu": "_MENU_ 记录/页",
        "sZeroRecords": "没有匹配的记录",
        "sInfo": "显示第 _START_ 至 _END_ 项记录，共 _TOTAL_ 项",
        "sInfoEmpty": "显示第 0 至 0 项记录，共 0 项",
        "sInfoFiltered": "(由 _MAX_ 项记录过滤)",
        "sInfoPostFix": "",
        "sSearch": "过滤:",
        "sUrl": "",
        "oPaginate": {
            "sFirst": "首页",
            "sPrevious": "上页",
            "sNext": "下页",
            "sLast": "末页"
        }
    },
    serverParams: function (aoData) {
        var array = $("#SearchArea,#SearchInput input,.SearchArea input").serializeArray();
        $(array).each(function () {
            if (aoData[this.name]) {
                if ($.isArray(aoData[this.name])) {
                    aoData[this.name].push(this.value);
                } else {
                    aoData[this.name] = [aoData[this.name], this.value];
                }
            } else {
                aoData[this.name] = this.value;
            }
        });
    }
});




/* Default class modification */
$.extend($.fn.dataTableExt.oStdClasses, {
    "sWrapper": "dataTables_wrapper form-inline",
    "sFilterInput": "form-control input-sm",
    "sLengthSelect": "form-control input-sm"
});


/* API method to get paging information */
$.fn.dataTableExt.oApi.fnPagingInfo = function (oSettings) {
    return {
        "iStart": oSettings._iDisplayStart,
        "iEnd": oSettings.fnDisplayEnd(),
        "iLength": oSettings._iDisplayLength,
        "iTotal": oSettings.fnRecordsTotal(),
        "iFilteredTotal": oSettings.fnRecordsDisplay(),
        "iPage": oSettings._iDisplayLength === -1 ?
			0 : Math.ceil(oSettings._iDisplayStart / oSettings._iDisplayLength),
        "iTotalPages": oSettings._iDisplayLength === -1 ?
			0 : Math.ceil(oSettings.fnRecordsDisplay() / oSettings._iDisplayLength)
    };
};

/*http://datatables.net/forums/discussion/9279/bootstrap-pagination-first-and-last-buttons/p1*/
/* Bootstrap style pagination control */
$.extend($.fn.dataTableExt.oPagination, {
    "bootstrap": {
        "fnInit": function (oSettings, nPaging, fnDraw) {
            var oLang = oSettings.oLanguage.oPaginate;
            var fnClickHandler = function (e) {
                e.preventDefault();
                if (oSettings.oApi._fnPageChange(oSettings, e.data.action)) {
                    fnDraw(oSettings);
                }
            };

            $(nPaging).append(
                '<ul class="pagination">' +
                '<li class="first disabled"><a href="#">' + oLang.sFirst + '</a></li>' +
                '<li class="prev disabled"><a href="#">' + oLang.sPrevious + '</a></li>' +
                '<li class="next disabled"><a href="#">' + oLang.sNext + '</a></li>' +
                '<li class="last disabled"><a href="#">' + oLang.sLast + '</a></li>' +
                '</ul>'
                );
            var els = $('a', nPaging);
            $(els[0]).bind('click.DT', { action: "first" }, fnClickHandler);
            $(els[1]).bind('click.DT', { action: "previous" }, fnClickHandler);
            $(els[2]).bind('click.DT', { action: "next" }, fnClickHandler);
            $(els[3]).bind('click.DT', { action: "last" }, fnClickHandler);
        },

        "fnUpdate": function (oSettings, fnDraw) {
            var iListLength = 5;
            var oPaging = oSettings.oInstance.fnPagingInfo();
            var an = oSettings.aanFeatures.p;
            var i, ien, j, sClass, iStart, iEnd, iHalf = Math.floor(iListLength / 2);

            if (oPaging.iTotalPages < iListLength) {
                iStart = 1;
                iEnd = oPaging.iTotalPages;
            }
            else if (oPaging.iPage <= iHalf) {
                iStart = 1;
                iEnd = iListLength;
            } else if (oPaging.iPage >= (oPaging.iTotalPages - iHalf)) {
                iStart = oPaging.iTotalPages - iListLength + 1;
                iEnd = oPaging.iTotalPages;
            } else {
                iStart = oPaging.iPage - iHalf + 1;
                iEnd = iStart + iListLength - 1;
            }

            for (i = 0, ien = an.length ; i < ien ; i++) {
                // Remove the middle elements
                $('li:gt(1)', an[i]).filter(':lt(-2)').remove();

                // Add the new list items and their event handlers
                for (j = iStart ; j <= iEnd ; j++) {
                    sClass = (j == oPaging.iPage + 1) ? 'class="active"' : '';
                    $('<li ' + sClass + '><a href="#">' + j + '</a></li>')
						.insertBefore($('li:eq(-2)', an[i])[0])
						.bind('click', function (e) {
						    e.preventDefault();
						    oSettings._iDisplayStart = (parseInt($('a', this).text(), 10) - 1) * oPaging.iLength;
						    fnDraw(oSettings);
						});
                }

                // Add / remove disabled classes from the static elements
                if (oPaging.iPage === 0) {
                    $('li:lt(2)', an[i]).addClass('disabled');
                } else {
                    $('li:lt(2)', an[i]).removeClass('disabled');
                }

                if (oPaging.iPage === oPaging.iTotalPages - 1 || oPaging.iTotalPages === 0) {
                    $('li:gt(-3)', an[i]).addClass('disabled');
                } else {
                    $('li:gt(-3)', an[i]).removeClass('disabled');
                }
            }
        }
    }
});


/*
 * TableTools Bootstrap compatibility
 * Required TableTools 2.1+
 */
if ($.fn.DataTable.TableTools) {
    // Set the classes that TableTools uses to something suitable for Bootstrap
    $.extend(true, $.fn.DataTable.TableTools.classes, {
        "container": "DTTT btn-group",
        "buttons": {
            "normal": "btn btn-default",
            "disabled": "disabled"
        },
        "collection": {
            "container": "DTTT_dropdown dropdown-menu",
            "buttons": {
                "normal": "",
                "disabled": "disabled"
            }
        },
        "print": {
            "info": "DTTT_print_info modal"
        },
        "select": {
            "row": "active"
        }
    });

    // Have the collection use a bootstrap compatible dropdown
    $.extend(true, $.fn.DataTable.TableTools.DEFAULTS.oTags, {
        "collection": {
            "container": "ul",
            "button": "li",
            "liner": "a"
        }
    });
}

